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model no.
060-1300-6
GAsOlINe eNGINe RUNNING ROUGHly
PRObleM
Knocking sound
Abnormal
combustion
Spark plug
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Piston, cylinder or piston ring is worn
excessively.
Piston pin and piston pin hole are worn
excessively.
Piston pin and piston pin hole are worn
excessively.
Roller bearing for crankshaft main shaft
is worn.
Engine is too hot.
Too much carbon deposit in combustion
chamber.
Improper gasoline brand or low gasoline
quality.
There is water in float chamber.
Improper spark plug electrodes clearance.
Faulty spark plug.
sOlUTION
Replace the worn part.
Replace piston or piston pin.
Replace tie rod.
Replace roller bearing.
Shut down and allow engine to cool
off before troubleshooting.
Clear away.
Replace with qualified gasoline.
Clean.
Adjust.
Replace spark plug.
83
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